wyman



(No Model.) 15 Sheets-Sheet 2.

H. WYMAN & J. A. CLARK. LOOM FOR WEAVING TUFTED PILE FABRIGS.

mi NDHRIS Pnzns cm. mmwuma. WASHINGTON, u, c,

(No Model.)

- l5 Sheets-Sheet 4. H. WYMAN & J. A. CLARK LOOM FOR WEAVING TUFTED PILE FAB No. 446,402.

RIOS. Patented Feb, 10,1891.

llll [Iii illih (No Model.) 15 Sheets-Sheet 5.

H. WYMAN & J. A. CLARK. LOOM FOR WEAVING TUPTED PILE FABRICS.

No. 446,402. Patented Feb. 10,1891.

\Wfhqesses.

(No Model.) I 15 Sheets-Sheet 6. 1-1. WYMAN & J. A. CLARK. LOOM FOR WEAVING TUFTED PILE FABRICS. No. 446,402.

Patented Feb. 10,1891.

(No Model.)

' 15 Shets-Sheet 7. H. WYMAN 85 J. A. OLAR LOOM FOR WEAVING TUFTED PILE FABRICS.

' No. 446,402. Patented Feb, 10,1891.

awm/za :7

(N6 Model.) I 15 Sheets-Sheet 9. H. WYMAN & J. A. CLARK. LOOM FOR WEAVING TUFTED FILE FABRICS.

N0. 446,402. Patented Feb. 10,1891.

(No Model.) 15 Sheets-Sheet 11. H. WYMAN 85 J. A. CLARK. LOOM FOR WEAVING TUFTBD PILE FABRICS.

No. 446,402. Patented Feb. 10,1891.

\vifgassas. Ig'feg irurs ML m J.. W wwflw (No Model.) 15 Sheets-Sheet 12.

H. WYMAN & J. A. CLARK. LOOM FOR WEAVING TUFTED PILE FABRICS.

No. 446,402. Patented Feb. 10,1891.

it EESEE.

I T/E tar-5 62 9/40 fire/0e 31/ MM Jam/w 1:.

(No Model.) 15 Sheets-Sheet 13.

H. WYMAN 8v J. A. CLARK. LOOM FOR WE'AVING TUFTED PILE FABRICS.

No. 446,402. Patented Feb. 10,1891.

WH E55 E5.

(No Model.) 15 Sheets-Sheet 14.

H. ,WYMAN 81; A. CLARK. LOQM FDR WEAVING TUFTED PILE FABRICS.

No. 446,402 Patented Feb. 10,1891.

wir e 5 E5. I X/E Q 4W5. 6%? @194...- 4757bw/QZ 7y 15 Sheets--Sheet 15. H. WYMAN 82 J. A. CLARK. LOOM FOB WEAVING TUFTED PILE FABRICS.

(No Model.)

No. 446,402. Patented Feb. 10, 18915 CITIII) 666. @600 479% mcafi nrrinn Srarns arnnr CrricnQ HORACE XVYMAN AND J OHN A. CLARK, OF \VORCESTER, MASSACHUSETTS, ASSIGNORS TO THE CROMPTON LOOM lVORKS, OF SAME PLACE.

LOOll/l FOR WEAVlNG TU FTED PlLE FABRICS.

SPECIFICATION forming part of Letters Patent No. 446,402, dated February 10, 1891.

Application filed May 6, 1890- Serial No. 350,774. (No model.)

To aZZ whom it may concern: The tuft-yarn cutters in the machine have Be it known that we, HORACE lVYMAN and been mounted upon arms having a common JOHN A. CLARK, of Worcester, county of pivot, and both cutters are actuated posilYorcester, State of lllassachusetts, have intively, the fnlcra of the arms carrying the 55 vented an Improvement in Looms for \Veavblades being adjustable, and,preferably, also, ing Tufted Pile Fabrics, of which thefollowthe blades are adjustable on their arms to ing descriptiomin connection with the aecomthus enable the blades to out the tuft-s just panying drawings, is a specification, like letof the proper length. The machine has also tors on the drawings representing like parts. been provided with a fabric-lifter to strike 60 ID This invention has for its object to improve against the under side of the fabric substanand simplify looms of the class shown in tially at the fell and lift it so that the back United States Patent No. 3%,110, dated June of the fabricwill always occupy a certain de- 1, 1886, the said loom in turn being an im fined predetermined position preparatory to provement upon that described in United cutting off the tuft-yarns, thus to insure uni- 65 States Patent Jo. 245,259, dated August 2, formity in the length of the tufts, thus im- 1881, the tufted fabric to be produced by the proving the quality and appearance of the loom herein shown to be described being the fabric and obviating waste of tuft-yarn. The same as that more fully illustrated in the patjacquard employed herein has also been imont No. 245,259. proved, in order that the tail-cords may be 70 The improvements herein to be described attached to hooks composed of wire, and immaybe stated,briefiy, asfollows, viz: Oneimproved mechanism has been added to the provement relates to the tuft-carrying neeloom for operating the said hooks not only dles, another to the means employed for susfor lifting them, but also for guiding them pending the said needles, and another to the so that they cannot twist or turn sidewise. 75 pocketed carriages which receive the lower Means have also been provided whereby all ends of the needles and control their move the hooks which are connected to and supment in the direction of the length of the port the tuft-yarn carriers or needles may be warp, and to means for supporting the said moved independently of the Jacquard needles pocketed carriages. The mechanism for movand placed in position to be engaged by the 80 o ing the evenrrs for acting upon -the needles griffs or bars of the top board, the hooks bewhich are dropped preparatory to inserting a ing kept in engagement with the said griffs row of tufts has been improved and the evenfor any desired number of picks, and during ers have been broadened, so that they act to such time the loom will produce from the support any of the needles which are not sebacking or jute part of the warp and the weft 85 lected to be employed for inserting a.row of inserted double what is called a heading tufts, provided the cords supporting the said or untufted part, to be cut through when needles which are not so selected should for it is desired to sever the fabric into pieces any reason become broken or slack and the and leave a part which will not unravel, the said needles should drop. The loom has also headings forming ends for the pieces. \Vhile 90 been provided with stop-motion devices to weaving the heading the tuft-yarn carriers stop the loom in case the selvage-shuttle continue to rise and fall with the top board; thread breaks, to stop the loom in case the but they are not lowered far enough to put filling-thread breaks, and to stop the loom in the trailing ends of the tuft-yarns into the case by accident two needles should be shed. 5 dropped so that their lower ends protrude To enable a border to be woven, provision below the lower side of any one pocket. The has been made to engage some of the rows of loom has also been provided with means hooks referred to with the griffs of the top whereby the patterircylinder maybe readily board and leave one or more rows with their turned back or rotated by hand in one or the shouldered lower ends in engagement with 10c other direction While the main shaft of the the lower lifting-board, so that all the neeloom remains at rest. dles connected to that row or rows of hooks may be used in a bank to form row after row of tufts. \Vhile the jute or back warp and the filling inserted double are being interwoven to form a heading, the said warps will be shed by usual shed-forming devices C0111- mon to the patents aforesaid and to usual body Brussels or tapestry'looms, we preferring to use three harness-frames for such purpose.

Fignre 1 is a view of some of the parts of a loom embodying this invention, looking from the right-hand side thereof, the section being just outside the frame-work and substantially in the dotted line of Fig. 8, the levers 43 and Get with their respective rolls being shown in elevation. Fig. 2 is also a partial view of the right-hand end of the loom; and Fig. 3 is yet another partial view of the right-hand end of the loom, said Figs. 1, 2, and 3, taken together, showing most of the parts to be described herein as improvements, which parts would show in elevation at the left of the line as, Fig. 8. Fig. 3, Sheet 1, is a detail of the cloth-lifter, looking from the crank shaft or lay; Fig. 3 Sheet 6, a detail to be described. Fig. 4 is a partial top view of the top board, having'the griffs or bars, upon which hang the hooks from which are suspended those needles which are not to be lowered to insert the yarns carried by them in the transverse row of tufts then to be formed. Fig. 5 is a detail showing the devices instrumental in moving the needles and pocketed carriages, together with the eveners, their actuating devices, and a part of the reed. Fig. 5 is a detail showing parts of levers 25 and 25 and the stop for connecting the lever 25. Fig. 6 is a section in the line 00 Fig. 9, looking from the right. Fig. 6 shows one of the tuft-yarn carriers or needles in edge view. Fig. 7' is an enlarged longitudinal section of the lower end of one of the tuft-yarn carriers or needles, showing the devices therein for preventing slipping of the tuft-yarn. Figs. 7, 7", and 7 -are different views of the carriage having the pockets for the needles. Fig. 8 is a partial front elevation of the loom, the levers acted upon by the cams on the camshaft being omitted because the said levers are shown in detail in other views. Fig. 0 is a partial front elevation of part of the loom above the parts shown in Fig. 8 and as if viewing Fig. 2 from the left; Fig. 9, a detail showing the shipper-handle and some of its co-operating parts; Fig. 9 details showing the slide-block through which move the legs forming parts of the different stop-motions to be described, the block and red a in full lines being in the position occupied by them when the 100111 is running, the dotted lines showing the upper end of the rod as having entered the block, as it does after the loom has been stopped automatically; Fig. 9, a detail below the line .68 Fig. 2, chiefly to showthe connections bet-ween the rods J and J Fig. 9, a section in the line .02 Fig. 9. Fig. 9 is a detail showing part of the shipper-shaft and its notched collars. Fig. 1.0 is a partial view of the jacquard portion of the 100m looking at it from the right in Fig. Fig. 11 is a vertical sectional detail taken through the Jacquard needles which are acted upon by the Jacquard cylinder to shift the hooks, only a portion of the said hooks being shown in the said figure because they are fully illustrated in Fig 18. Fig. 12 is a right-hand end elevation of the parts shown in Fig. 11. Fig. 13 shows one of the Jacquard needles detached with the spring upon it, and also a portion of one end of one needle with the spring removed. Fig. 13 shows a modified form of hook G. Fig. liis a detail showing part of the top board with the hook-locking board pivoted thereto. Fig. 15 is a partial top view or plan of the hooklocking board. Fig. 16 is a partial top view or plan of the part of the lower hook-board. Fig. 17 is a section in the line 00 Fig. 16, one of the hooks being partially shown in both of said figures. Fig. 18 is a detail showing the top hook-board, thelower hook-board, the hook-lockin g board, and the hook guide-board in section, together with some of the Jacquard needles shown broken off, some of the hooks being shown in elevation with tail-cords attached. Fig. 19 is a detail showing the cam for actuating the cloth-lifting devices. Fig. 20 is a sectional detail in the line as, Fig. 8, looking from the right chiefly to show the selvageshuttle and its actuating devices. Fig. 21 is a detail showing part of the loomframe at its right-hand side, looking from the front of the loom, and part of the stop mechanism and tension devices for the weft-thread going to the weft carrier or needle for inserting the weft. double. Fig. 22 is a detail looking from the right-hand side of the loom, chiefly to show the cloth-lifting device and the devices employed for actuating it, together with the devices employed to actuate a selvagc-heddle. Fig. 23 is a detail yet further illustrative of the said selvage-heddle and the means for supporting and actuating it. Fig. 24: is a partial left-hand side elevation of the loom, chiefly to show the tuft-yarn cutters and their actuating devices, the said cutters being omitted from all the other figures, except Fig. 22, to avoid confusion in the drawings; but in Fig. 22 the stand at the right-hand side of the loom and part of the arms, duplicates of those shown in Fig. 24, are shown. Fig. 25 is a detail showing part of the stop-motion for the weft-thread. Fig. 26 shows one of the upper or back-shear-operating levers detached. Figs. 27 and 28 show, respectively, the upper and lower cutter-actuating cams. Figs. 20 to 36, inclusive, represent some of the different cams employed for operating the different parts, the said figures showing the shapes of the said cams and the grooves therein; Fig. 37, Sheet 12, an inner side view of the brake-wheel 12 Fig. 38 is a detail showing some of the devices for reciprocating the selvage'shuttle carrier. Fig.

IIO

.ployed in this loom will be carried and iiiserted double by a needle attached to a horizontally-sliding carriage, and that the tuftyarns t (shown partially only in Figs. 5, 6, and 7) will come from suitable spools or bobbins mounted in a creel-frame at the rear of the loom, and that the loom will be provided with usual and suitable shed-forming devices to form sheds in the back or foundation warps, which may be composed of cotton, jute, or other strong material, and that the loom will be provided with two or more warpbeains, suitable whip-rolls, and tension and let-01f mechanisms, and with means for rotating the roll 42, which will or may be provided with suitable pins to enter the 'carpet or fabric and take the same up as woven, and these devices are and may be substantially as in thepatents referred to, and therefore it has not been considered necessary in this present instance to show an y of the said parts or devices, but only to show the different parts herein to be claimed, together with such parts common to the said looms which are changed or modified in construction to actuate the said novel parts.

Referring to the drawings, 13 represents the power-shaft, it having loose thereon part of a friction-clutch pulley B, which receives the usual driving-belt. B represents the other part of the friction-clutch pulley, said part being splined upon the said shaft B and being adapted to be moved to the right in Fig. 8 to clutch the continuously-rotating part- B, whenever the shaft B is to be rotated. The details of these clutch parts are not shown, as they may be of any usual construction common to clutch-pulleys, or as in the 1atent No. 245,259 referred to. The part B has its hub provided with an annular groove, which is entered by projections at the inner end of a forked lever a, jointed by a link a to an arm attached to the shipper-shaft a, the said SlIlPPGY'SllFtfC having a shipper-handle C62, (see Figs. 2 and 9%) provided with a pawl (U acted upon by a spring a the said pawl having a projection at its lower end adapted to engage a notch e in a stand (L23 when the shipper-handle a is in the position shown in Fig. 8, the parts of the friction-clutch pulley at such time being disengaged and the loom at rest. The link a is jointed to the arm (0 of the rock-shaft a in such manner that when the handle a is thrown over to the left in Fig. 8 or to the right, viewing Fig. 9 against the stop (L25, the center of the joint between the arm a and the link a will fall below the horizontal center of the shaft a, thereby keeping the handle a in that position and the clutch parts closed to run the loom. The shaft ct has loose on it between two collars (L27 (see Fig. 2) the hub of an arm a which is connected by a link a to a vertically movable slide-rod a (shown also in Fig. 3 and partially in Fig. 9,) the lower end of which is extended loosely through a guidestand a, secured to the frame-work, the said slide-rod being surrounded above the said stand by a spiral spring C632, the lower end of which rests upon the said stand while the up per end of the said spring acts against a col lar a, secu red to the said rod, the said spring normally acting to push the said slide-rod, as shown by dotted lines, Fig. 9, upwardly against the shank of a block a (shown separately in said figure,) the said shank being adapted to slide horizontally in a stand a secured to the frame-work. The shank of the block (0 has a hole in it, as shown in 9, for the reception of rod a the dotted lines showing said rod in said hole, and the block has an opening a, through which are extended several legs to be described, constituting parts of the several stop-motions. The block a is normally pressed inwardly by a spring a, and in such position the upper end of the slide-rod (LS0 acts against the under side of the said block, as shown by full lines, Fig. 9 and the spring a is compressed. Whenever, however, the block a is pulled outwardly, as will be described,then the hole in the said block comes in line with the said rod a and the latter is permitted to rise under the action of the spring (632 and enter the said hole, and said rod through the link a connected to the arm a flcauses the shoulder (0 (see Fig. 3 of the said hub to act against the shoulder of the collar a, fast on the shaft to, (see Fig. 92) and turn the same in the direction to disengage the clutch part B of the clutch-pulley from the part B and stop the loom.

Providing the hub of the arm 0,28 and the collar with shoulders, as described, and mounting the saidarm on the shaft a loosely enable the shaft a to be operated by the handle a to release or clutch the clutch-pulley parts together, as desired, without moving the slidebar a The loom-frame has a suitable stand at I), in which is mounted a rock-shaft I), (see Fig. 2,) having an arm Z), which, twice during each rotation of the power-shaft B is acted upon by the cam projections I) (see Fig. 37) of the brake-wheel I), attached to the said powershaft. A spiral spring 12 connected to an arm of the rock-shaft I) and to a suitable stand on the frame-work, normally acts to keep the end of the arm 12 in the range of the said cam projections b. The opposite end of this rock-shaft Z) has an arm or vibrator I)", which vibrates close to the under side of the head of the block a, so that whenever the end of either of three legs to be described is permitted to descend below thehead of the said block, the said vibrator will strike it and pull the block a outwardly against the spring (L38, permitting the hole in the shank of the said block to come in line with the rod (L to enable the latter to rise and the shaft a to rock to stop the loom, as described.

The leg 5 (shown in Fig. 2 and partially in Fig. 9) forms part of what is called the shuttle stop-motion. This leg has its upper end turned down to enter the opening a of block a at its end nearest the front of the loom, and when the said leg is in its normal position and the thread in the selvage-shuttle is being properly delivered the said downturned end of leg I) stands above the bottom of the block a. The lower end of the red I) is jointed to an arm 6 of a rock-shaft 1), extended across the loomframe and provided at its opposite end (see Fig. 20) with an arm U which has attached to it a link D which in turn is jointed to the lower end of the sclvageshuttle-thread controller D pivoted at 12 on a suitable stand b, the upper end of the said controller b being vibrated in the direction of the warps between the selvage of the cloth at that side of the loom and the inner side wall of the selvage-shuttle race 6 which is bolted to a suitable fixed part of the loom. The shuttle-race is arranged in the arc of a circle and containing the selvage-shuttle Z1 which is actuated by a shuttle-carrier b having usual horns, such as commonly employed on carriers for moving sewing-m achine shuttles, the said carrier by its horns passing the shuttle I) through the loop of weft-thread carried through the shed double. The shuttle-carrier (see dotted lines, Fig. 20, and detail, Fig. 38) is connected by a link 11"" to an arm 11 of an elbow-lever pivoted at I) on a suitable stand, the opposite end of the said elbow-lever being connected by a link b to the upper end of an elbow-lever Z1 which is acted upon by asuitable cam 1), fast on-the cam-shaft 13 near the left-hand side of the loom. A spring 0 connected to the said lever b and to a hook I), normally acts to keep a roll or projection of the said lever against said cam.

The rock-shaft b referred to, near the right-hand side of the loom, has connected to it an arm I), (shown chiefly by dotted lines, Fig. 2,) to which is jointed a rod b (see Fig. 1,) connected to one end of a lever b pivoted upon a stand Z), the opposite end of the said lever having a roller or other stud,

, which is acted upon by a cam 1), fast on the cam-shaft B just within the frame-work, near the right-hand side of theloom, the cams If and I) being shown separately in Figs. 34 and 35, the said cams having three points, so as to move the parts actuated by them once for every pick of filling inserted double into the fabric.

The spring I), connected to the lever 12', causes the upper end of the said threadcontroller to move toward the rear of the loom and act upon the selvage-shuttle thread to take up any slack therein, and in case the said shuttle-thread breaks the shuttle-thread controller continues its movement sufficiently far under the action of the said spring to further turn the rock-shaft b in the direction to cause the downturned end of the leg Z) to descend below the block a, so that the vibrator b" catches it and effects the stopping of the loom. The shape of the cam b, which acts on the lever ZJ Lis such that itacts intermittingly to throw the thread-controller 19 toward the front of the loom, the spring b normally acting to move the said controller toward the rear of the loom'to act on and take up the slackin the shuttle-thread. The movement of the controller Z2 due to spring I) is stopped by the thread as soon as the slack is taken up, and the thread then acts to prevent the spring 19 from moving the lever l) far enough to enable the roller at the inner end of said lever to enter the bottom of a space between the throws of the cam I), (see Fig. 35;) but in case the thread breaks the spring I) has full control of the controller and moves the same sufticien tly to draw down the leg I) and effect the stopping of the loom, as described, the roll at the end of the lever If then bottoming in the lowest part of the cam b. The selvage-shuttle-thread controller Zfl, also, by its action upon the shuttlethread, keeps the said thread so taut that the loop or filling through which it is passed when the said loop is being drawn back and properly tightened in the fabric does not draw the selvage-shuttle thread within the regular selvage-threads of the warp.

The loom-frame has applied to it a suitable stand 0 (see Fig. 25,) having a spring 0 which bears upon the filling-thread f it coming from a suitable can or bobbin (not shown) and going to the usual filling-thread carrier or needle. (Not shown.) The filling-thread just beyond the spring referred to receives upon it a hook or eye 0 0f a rod pivoted at 0 and having a leg 0 which is also extended down through the hole a in the block a and in case the filling-th read breaks the said leg is permitted to drop sufficiently below the said block to be caught by the vibrator b, so as to pull out the said block a to stop the loom, as before described. The third stop-motion, which is made effective through the vibrator Z)" described, acts when two tu ft-yarn carriers are dropped at the same time between the open eveners. tains the leg 0 which is extended upwardly through a guide in a stand 0", attached to the 100m side, the said leg having a lug or projection 0 (see Fig. 9) at its inner side, which is below the said guide, the said projection resting upon an arm 0 (see Fig. 8,) attached to a rock-shaft 0 having hearings in the said stand, the said rock-shaft having a second arm 0 (see Fig. 5,) which is adapted to be acted upon by an arm 0, connected to a rock-shaft 0 having its bearings in the This third stop-motion contheir vertical movement.

side rods 120, the said rock-shaft a having a like arm near each side of the loom. The rock-shaft 0 has an arm c acted upon by a spring 0 to normally cause the arm a to keep the leg c elevated, so that its lower end does not protrude below the bottom of the block a. The eveners 110 and 116 to be described, which act on the lower ends of and align the dropped or selected tuft-yarn carriers c, are connected to the lower ends of arms 25 and 25*, pivoted on studs 145 and 145 carried by the rodslS of the swing or lift frame to be described. The arms 25 have each an upward extension 153, which, in case two tuft-yarn carriers or needles 0 should happen to be dropped at the same time in any one carriage, so as to prevent the evener 1T0 from remaining in its normal acting position, by the action of the spring 1&7 will cause the said extensions 153 to act upon the described arms 0 and push them out or back in the direction of the arrow near one of said arms in Fig. 5, so that when the swing-frame which raises and lowers the tuft-yarn carriers descends to cause the lower ends of the selected needles 0 to be entered between the warps the said arms c will strike the arm 0 of the rock-shaft c and turn it far enough to permit the leg 0 to drop with its lower end below the block a to be struck by the vibrator to stop the loom, as before described.

The evener 146 has to move many carriages and needles, and the strain on it is at times considerable, and if the rock-shaft- 0 should have an arm 0 at but one end, so that the shaft 0 could be turned only at one end, the springingof the evener might render the third stop-motion uncertain. So to do away with this uncertainty the shaft c has two arms e one near each end.

The shaft a has an arm (1 (see Fig. 2,) which is connected by a link (Z with one end of the brake-lever d pivoted at d", the said brake-lever havina suitable brake d, which when the shaft. 0 is turned to release the clutch-pulley also causes the said brake to be forced against the periphery of the brakepulley b The top board E, (shown in 3, it, 10, 11, and 18,) provided with a series of longitudinal griff-bars 100, has at its opposite ends ears 117, which are suitably bolted to carriages 1, suitably shaped to slide in the end slots 118 of the Jacquard frame-work A These carriages have studs 101, which receive upon them metal loops 110, (see Fig. 10,) into which are screwed the upper ends of rods E, the lower ends of which rods are screwed into joint blocks 120, (see Figs. 5 and 0 and dotted lines in Fig. 3,) the said joint blocks being pivoted between the bifurcated ends of radius-bars 121, pivoted at 122 on the loom side, said radius-bars acting chiefly as guides to control the lower ends of the joint blocks in The car at the lower end of each joint block, there being one at each side the loom, has pivoted to it at 6 the upper end of one of the like side bars 18 of the tuft-yarn-carrying swing or lifting frame, the lower ends of the said arms being jointed at 1i to the upper ends of the arms e common to United States Patent No. 245,250, the said arms being adapted to slide vertically in grooves at the inner sides of the arms c, pivoted at e in stands e attached to the framewvork. These arms 6 and the slides e are substantially thesame as in the said patent, and are actuated bysubstantiallylike means, under, however, slight modification. In this instance the arms a derive their backward or forward movement once during the insertion of each three double picks of filling by or through a tubular rock-shaft a, surrounding the shaft f, the said rock-shaft near each end having like arms 6 which have attached to them at their upper ends rods c" which are connected to the upper ends of the arms e, the said rock-shaft having an arm 6 provided with a roller or other stud which is acted upon by the cam e on the main cam-shaftl-l of the machine.

The slidebars e have attached to them at their lowerends linksf' which are jointed to arms 125, pivoted at 126 upon arms f, attached to the rock-shaft f, the said arms having slots, as shown in Fig. 1, to receive bolts 120 attached to the arms 125 to thereby permit the said arms to be adjusted on the arms f and enable the exact positions of the top board and all parts which movein unison with it to be determined as to their highest and lowest positions.

The rock-shaft f has an arm j", which is acted upon by a cam f there being one such arm near each end of the rock-shaft and one such cam near each side frame of the loom, so as to lift the arms 6 and the parts above it equally at both sides, the said cams being denominated the heavy-lift cams. The rods E referred to as forming part of the said swinging and lifting frame, have secured to them byset-screws 114c the hubs113,to which is suitably bolted the needle-guide board E the said guide-board having (see Fig. 18) a series of parallel bars 153i and a series of transverse wires 115, so located with relation to each other as to receive the broadened looplike ends of the hooks G to be described, and prevent the said hooks from twisting or partially rotating and so hold them that their upper ends 135 will always be properly caught at the proper times on the griffs 100.

The top board E has suspended from it by links 102 (being best shown in Figs. 10 and 11) a hook-locking board E the said links being bolted by bolts 103 to ears 10 of said frame. This frame has a series of longitudinal bars 110 and a series of transverse bars 112,(see Fig. 15,) thus making spaces for the reception of each hook G. One of the links 102 is connected by the link 105 to a short arm 100 (shown by full lines Fig. 10 and dotted lines Fig. 14) of a rock-shaft 107, extended across the loom-frame, the said rock-shaft 

